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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. SwiftOnSecurity‏ @SwiftOnSecurity 15 Feb 2018
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      It’s 2018 and you can run Crysis on integrated graphics, but Linux still can’t play two sounds at the same time on anything.

      35 replies 108 retweets 724 likes
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    2. SwiftOnSecurity‏ @SwiftOnSecurity 15 Feb 2018
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      (Problems with mixing simultaneous audio streams was a real issue with ALSA years ago)

      10 replies 0 retweets 38 likes
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    3. SwiftOnSecurity‏ @SwiftOnSecurity 15 Feb 2018
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      SwiftOnSecurity Retweeted

      Apparently it's still an issue 🙁https://twitter.com/zeefreak/status/964162903392817156 …

      SwiftOnSecurity added,

      This Tweet is unavailable.
      4 replies 1 retweet 51 likes
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    4. hedge.txt | Mostly Inactive, except when not‏ @hedgeberg 15 Feb 2018
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      Replying to @SwiftOnSecurity

      I've never had an issue with this when running pulse over alsa, but I haven't looked into the internals of the interface, maybe pulse mixes the audio before sending to alsa? That's kinda neat though, curious why this has persisted as long as it has.

      1 reply 0 retweets 1 like
    5. Hector Martin‏ @marcan42 15 Feb 2018
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      Replying to @hedgeberg @SwiftOnSecurity

      Pulse mixes everything. ALSA has dmix which can do the same but isn't enabled by default these days (because PA takes care of it). And PA usually has an ALSA plugin so *everything* should go to PA and get mixed by default.

      1 reply 3 retweets 12 likes
    6. Hector Martin‏ @marcan42 15 Feb 2018
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      Replying to @marcan42 @hedgeberg @SwiftOnSecurity

      If you have a really boneheaded legacy app that hardcodes the audio output device on ALSA or insists on direct hardware access then yeah, that will not work properly and will block other audio if there was nothing playing before.

      4 replies 2 retweets 13 likes
    7. Bad Horse‏ @BadHorseOC 15 Feb 2018
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      Replying to @marcan42 @hedgeberg @SwiftOnSecurity

      Linux audio is such a mess. This is why I like FreeBSD. /dev/dsp is a virtual device that many processes can open, and a kernel thread mixes it. Simple as pie and it just F'ing works.

      2 replies 0 retweets 1 like
    8. Hector Martin‏ @marcan42 15 Feb 2018
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      Replying to @BadHorseOC @hedgeberg @SwiftOnSecurity

      Can it switch dynamically between sound cards? Will plugging in external speakers re-route audio through the separate DAC channel? What about up/downmixing? Hotplugging HDMI to send audio to a TV? Network audio? Bluetooth? Ducking audio while on calls? PA does all of those.

      2 replies 0 retweets 3 likes
    9. Francesco Ponzin‏ @FrancescoPonzin 15 Feb 2018
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      Replying to @marcan42 @BadHorseOC and

      with PA you can use a bluetooth headset as a baby monitor while talking on skype and sending the song you are listening mixed with your voice :D ps: alas, if you configure it to do so, it can develop odd random latencies and borrow more cpu power than it should

      1 reply 0 retweets 1 like
      Hector Martin‏ @marcan42 15 Feb 2018
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      Replying to @FrancescoPonzin @BadHorseOC and

      Yeah, PA is by no means perfect, but it's gotten good enough to Just Work in the vast majority of cases, and it provides some rather nifty features. I finally switched to it years ago when I had a use case for network audio.

      8:15 AM - 15 Feb 2018
      • 2 Likes
      • VDeviance (Humberto Saabedra) Francesco Ponzin
      1 reply 0 retweets 2 likes
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        1. Francesco Ponzin‏ @FrancescoPonzin 15 Feb 2018
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          Replying to @marcan42 @BadHorseOC and

          If I could fix the loopback module I would really love it even more :D

          1 reply 0 retweets 0 likes
        2. Hector Martin‏ @marcan42 15 Feb 2018
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          Replying to @FrancescoPonzin @BadHorseOC and

          If you're trying to do anything real-time, JACK is still king. That's stepping out of user-friendly territory, but then again most users don't need sub-5ms latencies. I regularly mix PA and JACK in interesting ways these days.

          1 reply 0 retweets 1 like
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